As we age, gracefully or otherwise, our lives change. Sometimes our homes and offices don't accomodate us well. My old pal Louis Tenenbaum has the vision and foresight to work on universal design and aging in place issues. Check out his web site for details.
Having lived with Lisa during her double knee replacement I became sensitized adaptive design issues. Walkers and small bathrooms with doors on the shower. Need I say more? Getting the accessible room in a hotel on a couple of occasions was an eye opener too.
Go, read Louis' site.